Priming-cup for v-type engines.



w. HQROB ERTS. PRIM ING CUP FOR'V -TYPE.ENGINES. AIFPLICATION FILED APR. 19. 1915.

1,170,993. Patented Feb. 8; 1916,

' i Elma/whom v Wzzzmm 12305671 Wbbnaoom v j Wdflg A M v, y m f V I v v Q gamma rinrrnp STATES PATENT onrion.

WILLIAM H. ROBERTS, 0F DETROIT, MICHIGAN, ASSIGNOR TO THE ROBERTS BRASS 7 MANUFACTURING- COMPANY, 013 DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

PRIMING-GUI FOR V-TYPE ENGINES.

Patented Feb. 8', 1916.

Application filed. April 19, 1915. Serial No. 22,450.

To all whom it may concern:

Be it known that I, VILLIAM H. ROBERTS, a citizen of the United States of America, residing at Detroit, in the county of lVayne and State of Michigan, have invented certain new and useful Improvements in Priming-Cups for V-Type Engines, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to priming cups for use on explosion engines, and has for its object the obtaining of a simple construction applicable to the V-type of motors.

In the drawings: Figure l is an elevation of the cup as applied to the cylinder; and Fig. 2 is an enlarged section thereof.

In the present state of the art, priming cups are usually formed of a plug valve,

having an upward extension forming the cup or receptacle and a downwardly-extending threaded nipple for attachment to the engine cylinder. Such a construction is applicable to a vertical type of engine, but

if placed upon a V-type of motor this would incline the cup so as to spill'the contents. On the other hand, if the cup is formed to extend at an angle to the valve body, so as to remain in upright position, the difiiculty and cost of manufacture is increased. With my improvement I have obtained a con-.

struction in which the priming cup, valve casing and nipple are all axially alined, and at the same time the mouth of the cup will be arranged in a horizontal plane-when the axis is inclined to be parallel with that of.

tion H is, however, out 01f at such an angle to the axis that it will be in a horizontal plane when the cup is applied to the cylinder. This portion is also recessed at I to form a receptacle which communicates through the axle port J with the plug port and alined port K in the nipple. To secure the maximum capacity for the cup or receptacle I, with the minimum external diameter, the portion H is preferably of spherical form.

As before stated, the threaded nipple, the body portion and the portion H are axially alined. This is highly desirable, as it allows the operations of machining, polishing or buffing to be very readily performed. Thus by making the center of the spherical portion H in axial alinement with the longitudinal axis of the body portion when the article is'placed in a buffing machine and rotated, the portion H will have its path of rotation concentric with the path of r0- buffers to readily operate upon the article.

After the finishing operation the portion H is cut oif at the desired angle and then recessed.

The construction a above described may be as cheaply manufactured as the ordinary priming cup designed for a vertical cylinder, and also occupies a minimum of space.

What-I claim as my invention is A priming cup comprising a plug valve body portion, a nipple portion on one end of said body portion and an extension on the opposite end of the body portion of substantially spherical form, said body portion and nipple portion having an axial passage therethrough, and the center of said substantially spherical extension being in alinement with the longitudinal axes of said body portion and nipple portion, said extension being cut away in a plane at an angle to the axes of the body portion and nipple portion, and recessed to form a cup communicating with the axial passage.

In testimony whereof I afiix my signature in presence of two witnesses.

WILLIAM H. ROBERTS.

I/Vitnesses:

JAMES P. BARRY, ARTHUR D. PULVER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 1, E t

' Washington, D. G, 

